OVR-15, 27 & 38 Outdoor Vacuum Recloser Low Voltage Unit Instruction, operation

ABB

OVR-15, 27 & 38 Outdoor Vacuum Recloser Low Voltage Unit ...

OVR-15, 27 & 38 LV cabinet Instruction Manual ... The OVR-15, 27 & 38 recloser LV cabinet should be installed within the design limitations as described on.

OVR-15, 27 & 38 Outdoor Vacuum Recloser Low Voltage Unit Instruction, operation, and maintenance manual

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PDF OVR LV Instruction Manual

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OVR-15, 27 & 38 Outdoor Vacuum Recloser Low Voltage Unit Instruction, operation, and maintenance manual

Copy Right
This manual and parts thereof must not be reproduced or copied without written permission from ABB, and the contents thereof must not be imparted to a third party, nor used for any unauthorized purpose.
Disclaimer
The data, examples and diagrams in this manual are included solely for the concept or product description and are not to be deemed as a statement of guaranteed properties. All persons responsible for using the equipment addressed in this manual must satisfy themselves that each intended application is suitable and acceptable, including that any applicable safety or other operational requirements are compiled with. In particular, any risk in applications where a system failure and/or product failure would create a risk for harm to property or persons (including but not limited to personal injuries or death) shall be the sole responsibility of the person or entity applying the equipment and those so responsible are hereby requested to ensure that all measures are taken to exclude or mitigate such risks.
This product has been designed to be connected to medium voltage distribution networks. It is the sole responsibility of the person or entity responsible for the network administration to ensure a secure connection to the network and take necessary measures to protect the product and the network, its system and interface included against any kind of security breaches, unauthorized access, interference, intrusion, leakage and /or thefts. ABB is not liable for any such damages and/or losses.
This product is intended to be operated and maintained by qualified personnel, thoroughly trained and knowledgeable with regards to the associated hazards involved. This publication is written only for such qualified personnel and is not intended to be a substitute for adequate training and experience in the safety procedures for this device.
This document has been carefully checked by ABB, but deviations cannot be completely ruled out. In case any errors are detected, the reader is kindly requested to notify the manufacturer. Other than under explicit contractual commitments, in no event shall ABB be responsible or liable for any loss or damage resulting from the use if this manual or the application of the equipment.

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OVR-15, 27 & 38 LV cabinet Instruction Manual

1 CONTENTS

Introduction .......................................................................................................................................... 6

Environmental protection program ................................................................................................ 6

End of life recycle/disposal...............................................................................................................6

Product related safety notices ......................................................................................................... 7

Working on LV cabinets and mandatory safety procedures. .................................................... 8

Warning Texts and Symbols..............................................................................................................9

Packing and transport ...................................................................................................................... 10

Receipt and Storage prior to installation .....................................................................................11

General Description of LV cabinet of OVR-15, 27 & 38 recloser .............................................. 14

4.2.1 4.2.2

Low voltage control cabinet (LV cabinet) ............................................................................................................ 14 Intelligent battery charger: ..................................................................................................................................... 15

4.2.3

Auxiliary supply .......................................................................................................................................................... 15

4.2.4

Actuator Control Module ......................................................................................................................................... 15

4.2.5 4.2.6

Rechargeable Batteries ............................................................................................................................................ 16 SERVICE and DISCHARGE modes ........................................................................................................................... 17

4.2.7

External Auxiliary Supply Status monitoring ....................................................................................................... 17

4.2.8

RER615 control ........................................................................................................................................................... 17

Standard production tests.............................................................................................................. 19

Installation .......................................................................................................................................... 19

Inspection and maintenance .......................................................................................................... 25

Common troubles and trouble shooting ..................................................................................... 27

General OVR-15, 27 & 38 Block Diagram .......................................................................................29

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OVR-15, 27 & 38 LV cabinet Instruction Manual

10 Typical rating plate details.............................................................................................................. 31

General Arrangement drawings ..................................................................................................... 32

Parameters to be maintained as default in RER615 .................................................................. 33

RER615 Settings .................................................................................................................................36

14 Annexure I : Typical functional characteristics of sealed lead acid batteries .....................43

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OVR-15, 27 & 38 LV cabinet Instruction Manual

For your safety!
- Make sure that the installation place & environment is suitable for the electrical apparatus.
- Check that all the installation, putting into service and maintenance operations are carried out by qualified personnel having relevant knowledge of the apparatus.
- Make sure that the standard and legal prescriptions are complied with during installation, putting into service and maintenance, so that installations according to the rules of good working practice and safety in the workplace are constructed.
- Strictly follow the information given in this instruction manual. - Ensure that the rated performance of the apparatus is not exceeded during
service. - Ensure that the personnel operating the apparatus have this instruction
manual to hand as well as the necessary information for correct intervention.

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OVR-15, 27 & 38 LV cabinet Instruction Manual

A. INTRODUCTION
This manual contains the information needed to install Low voltage (LV) cabinet of medium voltage OVR-15, 27 & 38 vacuum recloser and put them into service. For correct use of the product, please read this manual carefully along with instruction, operation, and maintenance manual for high voltage unit.
OVR-15, 27 & 38 reclosers are designed for different installation configurations. However, the mounting structure for this apparatus allows further technical-construction modifications (at the customer's request) to adapt to special installation requirements. Consequently, the information given below may sometimes not contain instructions concerning special configurations. Apart from this manual, it is therefore always necessary to consult the latest technical documentation (electric circuit and wiring diagrams, assembly and installation drawings, any protection coordination studies, etc.), especially regarding any variants requested in relation to the standardized configurations. Only use original spare parts for maintenance operations. For further information, please refer recommended spare part list mentioned in this manual. All the installation, putting into service, running and maintenance operations must be carried out by skilled personnel with in-depth knowledge of the apparatus.
B. ENVIRONMENTAL PROTECTION PROGRAM
OVR-15, 27 & 38 reclosers LV cabinet recloser is manufactured in accordance with the ISO 14001 Standards (Guidelines for environmental management). The production processes are carried out in compliance with the Standards for environmental protection in terms of reduction in energy consumption as well as in raw materials and production of waste materials. All this is thanks to the medium voltage apparatus manufacturing facility environmental management system.
C. END OF LIFE RECYCLE/DISPOSAL
ABB is committed for complying with relevant legal and other statutory requirements for environment protection according to the ISO 14001 standard. The duty of the end user is to facilitate end of life recycling & disposal according to the applicable regulations. During disposal of product, it is necessary to act in according with local legal requirements in force. Disposal can either be carried out thermally in an incineration plant or by storing on a waste site. Following are the methods of recycle/disposal:

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OVR-15, 27 & 38 LV cabinet Instruction Manual

Table 1 : Recycle/disposal methods

Raw Material
Iron Stainless steel
Copper Brass Aluminum Zinc Thermoplastic Rubber Packing foil Wooden pallet

Recycle
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

Environmental effects & reuse processes
Separate, utilize in favor of new source (ore) Separate, utilize in favor of new source (ore) Separate, utilize in favor of new source (ore) Separate, utilize in favor of new source (ore) Separate, utilize in favor of new source (ore) Separate, utilize in favor of new source (ore) Make granulate, re-use or apply as energy superior Cut into pieces & use as high-grade energy
Cut into pieces & used for landfills High grade energy additive in refuse incineration

D. PRODUCT RELATED SAFETY NOTICES
The OVR-15, 27 & 38® recloser LV cabinet should be installed within the design limitations as described on its nameplate and in these instructions. In addition, always follow your company's safety procedures.
For the safety of the personnel performing maintenance operations on the recloser or connecting equipment, all components should be electrically disconnected by means of a visible break and securely grounded.
This manual uses terms "ground" & "grounding" as per IEEE. These are equivalent to IEC terms" earth" and "earthing".
This manual contains terms and expressions commonly used to describe this kind of equipment.
These instructions do not attempt to provide the user of this equipment every possible answer to questions which may appear in the application, operation, and maintenance of the product.
Detailed descriptions of standard repair procedures, safety principles, and service operations are not included. It is important to note that this document contains some warnings and cautions against some specific service methods that could cause personal injury to service personnel or could damage equipment or render it unsafe. These warnings do not cover every conceivable method in which service (whether or not recommended by ABB) may be performed.
Secondly, ABB cannot predict or investigate all potential hazards resulting from all conceivable service methods. Anyone using service procedures or tools, whether or not recommended by ABB, must be completely certain that both their personal safety and the safety of the equipment will not be jeopardized by the service method or tools selected.
All information contained in this manual is based on the latest product information available at the time of printing. The right is reserved to make changes at any time without notice.

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OVR-15, 27 & 38 LV cabinet Instruction Manual

Also, as improvements in assemblies and parts are made, some parts may differ in appearance that depicted in illustrations; however, functionality will be equivalent.
E. WORKING ON LV CABINETS AND MANDATORY SAFETY PROCEDURES.
Whenever it is required to work on LV Cabinet, it is mandatory to follow following minimum procedures: a. Isolate the recloser from power system on its both sides. Put recloser in OPEN condition by
operating the emergency manual trip handle (yellow handle). b. Confirm the OPEN status of the recloser from the mechanical ON/OFF indicator, from SLD on LCD
display & the indication LEDs on RER615 HMI. c. Always put the SERVICE /DISCHARGE selector switch in the LV cabinet to DISCHARGE position. d. Follow the safety warning instructions on various warning labels provided on the LV & HV units e. Remove the control cable from both HV & LV cabinets & cover the 24 pin male connectors by plastic
caps provided. Although warning hazards are related to personal injury, it is necessary to understand that under certain operational conditions, operation of damaged equipment may result in degraded process performance leading to personal injury or death. Therefore, comply fully with all warning and caution notices.

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OVR-15, 27 & 38 LV cabinet Instruction Manual

F. WARNING TEXTS AND SYMBOLS
Warning texts mentioned are stated based on different degrees of urgency, which should be carefully observed. These are described below.

Danger

Danger Indicates an immediate risk situation that can lead to death or serious personnel injury if not avoided

Warning

Warning Indicates an immediate risk situation that can lead to death or serious personnel injury if not avoided

Caution Note

Caution Indicates a risk situation that can lead to small or moderate damage
Note is used when there is a danger that can lead to equipment damage only.

Important

Important indicates an operation or a suggestion for handling.

Warning Symbols
Following warning symbols may appear on warning sticker as a part of the product.

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OVR-15, 27 & 38 LV cabinet Instruction Manual

2 PACKING AND TRANSPORT
GOODS MARKING
The factory assembled LV cabinet transported in different packing case and its mounting brackets. Each case is marked with case markings on two sides with indelible black ink. The case markings include information of case number, gross weight, etc. In addition to the above, the cases are marked with the following symbols. These should be observed when choosing lifting equipment.

Figure-1 : General symbols on packing case
DOCUMENTS
Documents provided with the LV unit during dispatch. - Instruction manual - Operator's quick reference guide - Routine test certificate - Drawings - Packing list - Other documents as mutually agreed in contract with ABB

TRANSPORT AND LIFTING
The LV cabinet shall be transported in packed condition only. Before lifting the case, observe the information on it (such as symbol, weight, etc.). Following precautions are to be taken while lifting: - Ensure that packing cases are not placed on wet surfaces / waterlogged areas.

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- LV cabinet should not be stacked one over the other.
- LV cabinet should be lifted by a lifting device equipped with forks or slings. If a crane is used, slings shall be used. The units must not be rolled or dropped.

Figure-2 : Packing case lifting arrangement
3 RECEIPT AND STORAGE PRIOR TO INSTALLATION
RECEIPT OF RECLOSER
Each LV cabinet is assembled and tested at the factory. Prior to shipment, the equipment is thoroughly inspected to ensure a quality product free from defects. If damage is noticed, call the carrier at once for inspection, and request an inspection report. Afterwards, file a formal claim with the carrier, supported with the Airway/Roadway Bill.
Each delivery, on receipt, should be checked for,
- Shortages and discrepancies. (Check against order and delivery documents). - Any transit damage and material losses. - Abnormality, if any, must be notified immediately to ABB, forwarding agents and the insurance
company. Instructions and literature packed with the LV unit should be kept with the unit. Additional copies may be obtained upon request from the local ABB sales office. Following are the typical parts in which recloser are generally shipped from factory.

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Default Shipment
Optional items (only if ordered separately)

Low Voltage (LV) control cabinet Mounting brackets Auxiliary power cable (2x1.5 sq.mm) Any additional spares

STORAGE OF RECLOSER LV UNIT
The LV Cabinet with complete packing should always be stored indoor to protect from direct sunlight & rain or snow. The LV cabinet should be stored in its original transport units, where they are well protected from damage.
LV cabinet can be stored up to 3 months from date of shipment from the factory. For longer storage, the packing needs to be removed and the recloser to be kept under controlled environmental conditions.
We define storage in controlled conditions as a place with:
- Leak proof roof - Solid, flat ground - Relative humidity less than 50% - Temperature 20 0C (+10oC) - The heating elements must be connected to the electric supply to protect the control equipment
from corrosion or freezing damage.

Important

The LV cabinets must be stored in the upright position to avoid moisture accumulation.
Recommended storage temperature range is -20 Deg C to + 40 Deg C.
The LV control cabinet has rechargeable batteries inside. A periodic check of battery voltage (24V) & periodic charging of the batteries (typically every three months) may be required in case of prolonged storage. For the batteries in your control cabinet, refer to technical documentation of the respective battery manufacturer. Also refer the section "Inspection & Maintenance" for further information.

Note

If the LV cabinet is not placed in service immediately, it is essential that proper care be exercised in handling and storage to ensure good operating condition in the future. Please consult ABB if the recloser will be in storage for an extended period of time before installation.

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HANDLING
The LV cabinet come with welded lifting brackets on the sides of these cabinets for lifting. A four-point lift is strongly recommended using the loops in these brackets. The approximate mass in Kg is separately mentioned on rating plates on HV & LV cabinets.

Figure-3 : LV Cabinet lifting detail

Caution Caution

Exercise care during lifting to avoid damage to the poles
Do not place the recloser LV unit on an uneven surface. Placing the LV unit on an uneven surface may cause tilting / galling of the HV unit causing damage to the equipment and injuries to the person nearby

Caution

Exercise care during lifting to avoid damage to the poles

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4 GENERAL DESCRIPTION OF LV CABINET OF OVR-15, 27 & 38
RECLOSER
LV CABINET ASSEMBLY
Each LV cabinet of OVR-15, 27 & 38 Recloser has intelligent battery charger, capacitors, control modules, relay and battery with their hard-wired circuits. Please refer the LV GA for the other constructional details.
CONTROL
4.2.1 Low voltage control cabinet (LV cabinet)
A weatherproof, IP55 rated cabinet, houses the low voltage control components. The LV cabinet has an outer hinged swing door with padlocking provision. The control and protection relay RER615, is mounted on an inner hinged swing door to allow front and rear access to it. All the MCBs, service/discharge switch and auxiliary power socket for laptop charging are mounted on the front side of inner swing door for easy access to operator. Other devices including space for mounting optional radio modem is provided on the side/rear walls of the cabinet. The floor of the LV cabinet is equipped with removable gland plate to provide entry to auxiliary power cable, communication cables, 50W thermostatically controlled heater is provided to prevent condensation in the LV cabinet.

Figure-7: LV control cabinet overview

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4.2.2 Intelligent battery charger:

The Intelligent battery charger indicated here is to convert the auxiliary power supply from connected from External PT or equivalent to suitable form required by components like Battery, RER615, ACM and external communication modem. This Battery charger is temperature compensated.

4.2.3

Auxiliary supply
The LV control cabinet requires auxiliary power to operate the Recloser, Actuator control Module (ACM), HV & LV cubicle heating, illumination, etc. A separate outdoor type 2 x1.5 Sq.mm jacketed cable is required to connect the external auxiliary power to the LV cabinet. Pl refer the Recloser quick reference guide for details.
For the auxiliary supply voltage / frequency applicable for your recloser, please refer the approved / as built drawings.
MCB is provided inside the cubicle for protection of Intelligent Battery charger, cubicle heating, illumination, and auxiliary power socket outlet.

Note

The auxiliary power outlet on the inner swing door is only meant for laptop charging in emergency situations. It should not be used for any other means as it may burden the external auxiliary power source.

4.2.4 Actuator Control Module

The Actuator Control Module (ACM) module gets its power supply from Intelligent battery charger.
ACM regulates the closing and tripping signals to magnetic actuator as per the feedback from HV unit and interaction with relay by charging/discharging the capacitors.
ACM is hardwired to RER615 relay to perform operations.

Figure-8: Actuator Control Module
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4.2.5 Rechargeable Batteries

The LV unit is supplied with two 12 V batteries connected in series and securely mounted in the LV cabinet for providing back up power to recloser in case of external auxiliary power failure. The batteries are protected by separate MCB.
Typically, the battery bank ensures minimal stand-by back up for 24 hours at 20 °C from a fully charged initial condition. However, the actual backup duration depends upon various site conditions such as:
- Ambient temperature & initial condition of the battery (temperature & storage period before commissioning, periodic charge/discharge, battery maintenance)
- Frequency of external auxiliary power outages & duration of each outage (i.e. the number of charging/discharging cycles) and depth of each discharge.
- Percent charging (terminal voltage) of the battery at the time of outage of external auxiliary power.
For additional details it is recommended to refer battery manufacturer documentation. Please also refer the section "Inspection & Maintenance" of this manual.
A battery temperature sensor is provided near the battery bank terminals. Battery Charging temperature range is -20 + 50°C.
We are providing Valve Regulated Lead Acid (VRLA) batteries which are temperature & charging voltage sensitive. Although maintenance by way of water topping up is not required, regular checking and assurance of proper charging voltage, depth of discharge and operating temperature is needed.
In case of loss of external auxiliary supply, the intelligent battery charger switches over to battery bank for power and continues to conduct its function. Recloser will work as long as the battery bank voltage remains above 20.5V. Below 20.5 V load management algorithm activates within intelligent battery charger and disconnects the power feed to ACM, RER615 and optional radio modem. This is done to prolong the batteries going into deep discharge mode. With relay not being powered, the recloser will not be able to perform any operation.

Caution

- Due to frequent and long duration external power outages, battery frequently undergoes discharge and charge cycles. This reduces battery capacity, charging efficiency & overall service life.
- During consistent long duration outage, the battery bank voltage may drop below 18V (9V per battery) indicating battery might have deep discharged & now cannot be charged again. At this point, the battery needs complete replacement by a brand new, fully charged equivalent battery.
- Connection of any additional load to battery is strictly prohibited, and ABB will not be liable for any adverse impact it can create to recloser performance including life of battery.
- Handling reclosers during long outages
1. If battery bank is healthy and in fully charge condition i.e. 24 Vdc, for the power outage can be of < 24Hrs. without any special attention required.
2. If power outage is for more than 24 Hrs OR typically > 10 CO operations after power failure, then it is considered as long power outage requiring special attention of batteries.
3. During long outages, the batteries might get drained to such a level that it might go into deep discharge stage i.e. battery bank voltage goes below 18 V.
4. In this situation recloser will not be able to recharge the batteries automatically and external charging may be required. Such situation might also damage batteries permanently and thus required to be replaced.
5. To avoid such situation, in case of power outage is expected to be more than 24 Hrs. switch OFF the battery MCB in the beginning of the outage and when the power resumes, switch it back to ON.
6. If power outage is more than a month, then charge the batteries on regular interval externally to ensure the battery bank voltage is always more than 21 VDC.

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4.2.6 SERVICE and DISCHARGE modes
A two position (Service & Discharge) selector switch is provided in the LV cabinet. For normal situations when the recloser is in service, this switch should be in Service position. In case, any maintenance is to be conducted inside the LV cabinet, the switch should be moved to Discharge position to ensure operator's safety from charged capacitors.
SERVICE Mode: For normal operation of recloser; the selector switch must be put in service mode. All the MCBs are in ON condition and the capacitors are kept fully charged by the ACM.
DISCHARGE Mode: Since the LV cabinet houses charged capacitors, it is mandatory that the operator should properly discharge them before conducting any maintenance inside the LV cabinet. For safely discharging the capacitors, a capacitor discharge circuit is provided in the LV cabinet.
The operator has to put the selector switch into Discharge mode upon which, the capacitors get connected to the discharge circuit. In Discharge mode, the capacitors are no more charged.
A red LED is provided on the discharge circuit to indicate the process of capacitor discharge. It takes few minutes for the capacitors to get safely discharged. This red LED starts glowing as soon as the switch is put in discharge mode and continues to glow until the capacitors are discharged to a safe level (around 2V).
Operator should wait until this red LED indication is turned OFF before touching any component inside the LV cabinet. In discharge mode protection & control are not available for the recloser.

4.2.7 External Auxiliary Supply Status monitoring
In the event of loss of external auxiliary supply, the Intelligent battery Charger sends signal to RER615 relay over an independent binary input. Thus, the status of availability of external auxiliary power to the LV unit can be monitored remotely in case communication set-up is made available.

4.2.8

RER615 control
OVR-15, 27 & 38 recloser LV cabinet is supplied with the microprocessor-based RER615 Intelligent Electronic Device (IED) from ABB's Relion family. This technologically advanced relay integrates all traditional recloser control functions with new advanced functions, such as three phase inrush and programming flexibility, providing a wide range of metering and remote control options.
For details on relay programming, operations, and testing, refer to technical documentation at www.abb.com. For details on the overall control circuit, refer to the approved/as built wiring diagram supplied with the recloser.
The RER615 implements a draw out case design for easy removal and internal upgrades. This design has two main parts: the frame and the case. The frame is fixed on the inner swing door of the LV cabinet. The case is removable via a handle and houses various cards. All card connections are made with terminal blocks that are affixed to the frame of the IED. This is powered by the charging device.

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Figure-9 : RER615 Display screen and LEDs on front facia Figure-10 : RER615 Buttons / Keys on front facia

Figure-11 : RER615 Modules for OVR reclosers - configuration `D'

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Note
Important Important

The RER615 is not intended for "hot swapping." Read section 8.1 before removing the relay from its case. When the RER615 is removed from its case, the current (I) input terminals automatically short circuit the CT inputs. No card should be removed from the RER615 in the field. If removal is required, contact the ABB Customer Service Group
The LV unit is shipped duly calibrated with the current /voltage correction factors (as applicable) already applied and set in the RER615 relay. It is mandatory that these correction factors are not modified after shipment.
RER615 Parameter Settings at the time of shipment from factory:
Other than the "Parameters to be maintained as default in RER615" listed in Section13 & the rated reclosing cycle in DARREC1 functional block, rest all parameter settings in RER615 are the "default settings" as per RER615 technical manual on ABB website.

5 STANDARD PRODUCTION TESTS
OVR-15, 27 & 38 recloser LV cabinet is tested thoroughly in factory before supplying. The standard factory production tests include:
1. Verification of wiring as per approved wiring diagram. 2. Electrical operation: a. Close and Open in Local/Remote modes b. Overcurrent response and automatic reclosing through primary injection. 3. Functional checks of manual controls (K69) & associated electrical & mechanical close block 4. Minimum Trip and Time-Current Test 5. No load mechanical operation test.
A standard routine test report with a summary of results is shipped as a part of documentation package.

6 INSTALLATION
The OVR-15, 27 & 38 recloser LV unit can be installed in a substation frame, pole-mounting frame, or can be mounted into a customer supplied structure. However, it is required that in all of the mounting methods the LV unit be vertical, levelled and securely fastened.
Before shipping from factory, the OVR-15, 27 & 38 recloser LV control cabinet are tested as a system in factory. It is mandatory that during installation, the HV unit and LV control cabinet should be properly matched by serial number mentioned on rating plates provided on each of them.

Note

- All metal mounting frames and structures must be commonly grounded to the grounding grid at site. For proper operation of the electronic components, it is mandatory that the total impedance of the grounding grid at site should be less than one Ohm (1 )
- It is also mandatory to ensure that all the grounding connections to the welded star grounding pad inside the LV cabinet are always intact and secured.
- Be careful not to bend the cable below a radius of 12 inches to avoid damage to itself.

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GROUNDING

Important

Always follow international, national and company specific regulations when grounding the equipment.

All metal mounting frames and structures must be commonly grounded to the grounding grid at site. Grounding is important to ensure proper operation of all electronic components, as well as to prevent penetration of EMC noise and other transients into the sensitive electronic circuits (RER615 relay, ACM, radios, etc.). Each LV cabinet includes two stainless steel welded grounding pads for grounding and M8 stud as shown in below figure. 80 Sq.mm cross-section, solid copper strip/equivalent is recommended for grounding.
For the proper operation of electronic components, it is mandatory that the total impedance of grounding grid at site should be less than one Ohm (1 ). It is also mandatory to ensure that all the grounding connections to the welded star grounding pad inside the LV cabinet are always intact and secured.

Grounding terminal(M8)
Figure -13: Provisions for Grounding Connections on LV cabinet

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OVR-15, 27 & 38 LV cabinet Instruction Manual

CONNECTING THE HV & LV CABINETS BY CONTROL CABLE
For normal operation, the HV & LV units are required to be connected through a shielded control cable. The control cable is supplied as per specified length, with 24 pin connectors & locking clips on both ends for connection to 24 pin connector counterparts on the HV & LV cabinets.
Figure 15 : Control cable connection to HV cabinet

Note

Figure 16 : Control cable connection between HV and LV cabinet
1. Minimum Bending Radius for the control cable is 12 inches. Please do not bend the cable with radius at bending less than 12 inches .This may damage the cable.
2. The control cable has to be clamped to the pole throughout the length at regular intervals as per best practices

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CONNECTING THE AUXILIARY SUPPLY
The control cabinet requires external two wire aux supply. Please refer the approved/as built drawings for the aux. supply voltage/frequency applicable to your recloser.
If agreed during ordering stage, an optional auxiliary supply cable can be supplied with the recloser. It is a black colored, jacketed, 2x1.5 Sq.mm auxiliary power cable with a gland and nut on one end to bring it inside the LV cabinet.
If the auxiliary control power is desired to be obtained from a pole mounted VT (PT), then the power rating of VT (PT) should be minimum 250 VA . Unless specified such VT (PT) will not be in ABB's scope of supply.

Caution

- Before connecting the external auxiliary power source to the LV cabinet, make sure that the SERVICE/DISCHARGE selector switch in the LV cabinet is in DISCHARGE mode.
- Follow instructions on the warning label provided on the inner swing panel (door).

FINAL INSPECTIONS BEFORE ENERGIZING
The LV unit should be tested for mechanical and electrical operation before it is energized in the power system. It is to be noted that the recloser is shipped in OPEN (OFF) condition from the factory.

Caution

Do not ground either side of the battery or attach ground to the terminals of the actuator operating coils. This will result in permanent damage to the unit.

When the LV cabinet has been installed completely with all mechanical and electrical connections completed, conduct following mandatory inspection before energizing the recloser on the main lines; 1. Ensure the LV cabinet is properly levelled and securely anchored. 2. Make a final check of tightness of all hardware. 3. Securely tighten terminals and ground connections. 4. Check control cable is properly connected, routed and secured. 5. Ensure both the HV & LV cabinets are grounded as mentioned in this manual.

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TABLE 2: OPERATION PROCEDURE

1. Initial Conditions at the time of Shipping

When shipped from factory, OVR-15, 27 & 38 recloser is having following status;
- Recloser interrupter contacts in OPEN (OFF) condition
- All MCBs in LV cabinet in OFF position.
- Service/Discharge selector switch in "DISCHARGE" position thus capacitors are in "fully discharged" condition.
- Battery physically disconnected from main circuit.

2. Checks and preparations before Powering ON.

1. Complete installation of LV & HV Units
2. Install other optional equipment such as surge arrestors, auxiliary control transformer (PT), etc.
3. Connect & properly route the control cable between LV & HV Units. Check that the male female connections are firmly secured on both HV and LV units
4. Connect & route all the ground connections
5. Ensure that the emergency manual trip (k69) handle is reset & BLOCK CLOSE is released
6. Connect 12V batteries physically as instructed.

3. To Power ON the LV Cabinet with Auxiliary power

1. Connect auxiliary power cable to the dedicated terminals inside the LV Cabinet. Check wiring diagram provided in order bound drawings.
2. Switch ON the auxiliary power from the source
3. Check availability of auxiliary power on terminals in LV cabinet
4. Switch ON the main MCB (AUX SUPPLY MAINS) on the inner swing door of LV Cabinet
5. With front door of LV cabinet opened, the cubicle Illumination lamp (if provided & controlled by door limit switch) should glow.
6. The auxiliary power outlet socket also gets powered up

4. To connect Auxiliary Supply to Charging device and ACM.

- Switch ON the MCB dedicated for External charger and AC circuits.
- With auxiliary power ON, the thermostatically controlled heaters in HV and LV cabinets may also get ON.

5. To connect batteries to Charging device

1. Check and firmly connect the 2 Pin Male-Female battery connectors in the battery circuit. Check schematic diagram supplied with the documents for details.
2. This will connect the two 12V batteries in series . Check the voltage across Battery Terminals to be around 24 V
3. Switch ON the battery MCB to connect batteries to charging device.

6. If a radio modem is

If, radio modem is part of the factory supply, it would be already wired up

provided or added later at to the radio modem MCB. Switch ON this radio MCB to Power it ON. Check

site, follow the instructions and connect the hardwired connection between relay and radio modem.

to power it ON

If customer wants to connect radio modem at site, following steps are to

be followed.

1. Check the schematic diagram provided with the documents to understand the pins on charging device for power on radio modem. It can support up to 7W at a dc voltage between 19 V to 29V.

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OVR-15, 27 & 38 LV cabinet Instruction Manual

7. To start capacitor charging
8. Checks and observations on ACM power ON.
9. AR Ready Indication on Relay LED
10. CLOSE Operation.
11. OPEN Operation
12. Hot line tag and Close blocking

2. Complete the physical wiring for power supply with an addition of 2 pole DC MCB of suitable rating in the circuit. Space is allocated on the inner swing door of the LV cabinet for mounting the MCB.
3. Hardwire the modem with suitable port of RER615 relay as per requirement of communication protocol. Modem Antenna can be connected outside the LV box by routing the Antenna wire thru bottom gland plate of LV box.
Put the Service/Discharge selector in the LV cabinet from "Discharge" position" to "Service" position
When the AC MCB of Charging device is turned on;
- ACM will conduct internal checks Initially with both RED and GREEN LEDs blinking on ACM. It may take around 2 minutes for recloser to become ready from each initial energization.
- Successful energization will be indicated by GREEN LED becoming steady and red LED continuously OFF. It indicates that the ACM (recloser) is ready for operations.
RER615 relay (on inner swing door) gets powered up with complete lighting of LCD screen & LEDs on RER615 relay HMI.
When ACM completes all the internal checks and fully charges the capacitors; the LED "AR Ready" on RER615 relay turns GREEN, indicating that the recloser is ready for operations.
(Please refer the approved/as built wiring diagram for detailed description on RER615 LED indications applicable for your unit)
For closing the recloser;
- Confirm the emergency manual trip (K69) handle is reset
- Confirm the recloser status as OPEN by referring to relay HMI (dedicated LED or recloser OPEN symbol of the SLD on LCD screen) and the ON/OFF position indicator on HV unit)
- Press the (I) button on relay HMI. Relay will display a message "CLOSE CBXCBR1? YES/NO".
- Press the ENTER push button on YES option. This closes the recloser.
For Opening/Tripping the recloser;
- Confirm the recloser status as CLOSE by referring to relay HMI (dedicated LED or recloser CLOSE symbol of the SLD on LCD screen) and the mechanical ON/OFF indicator on HV unit)
- Press the (O) button on relay HMI. Relay will display a message "OPEN CBXCBR1? YES/NO".
- Press the ENTER push button on YES option. This opens the recloser.
- RER615 relay provides a facility to activate a HOTLINE TAG (HLT), which if activated, blocks all the possible close commands given from local (through relay) AND / OR given remotely through SCADA. However, recloser is free to open by commands from Local / Remote, as well as on protection trip commands initiated by RER615 relay.
- When HLT is deactivated, close block is disabled. - The activation and deactivation of HLT can be locally done via
dedicated function key `F2' on the RER615 HMI or via remote thru SCADA. Its status is indicated by the LED placed near the function key.

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OVR-15, 27 & 38 LV cabinet Instruction Manual

7 INSPECTION AND MAINTENANCE
The OVR-15, 27 & 38 LV unit will require minimal maintenance if handled properly. Frequency of operation and local environmental conditions should be considered when determining maintenance schedule. To a large extent, the safety and successful functioning of any apparatus or system connected with the recloser depends on the proper installation, commissioning, programming and configuration of the unit. To provide long, reliable service, the LV unit should be inspected at regular intervals. Operating experience, environmental conditions, the number of operations, and any unusual service conditions will guide you in establishing a maintenance schedule. The maintenance work can only be carried out by trained personnel who knows & respect all safety regulations, furthermore, it is recommended that ABB service personnel should be called in, to check the service performance and for repair work.
ACTIVITIES BEFORE DOING ANY MAINTENANCE OF THE RECLOSER LV UNIT
(Perform this in conjunction with HV unit instruction manual) 1. OPEN the recloser with the emergency manual trip (K69) handle .This enables the mechanical as well as
electrical BLOCK CLOSE (recloser cannot be closed unless the K69 handle is manually reset). 2. Confirm the recloser OPEN status on RER615 relay HMI and on the mechanical ON/OFF Indicator on
HV cabinet. 3. Switch OFF all the MCBs to disconnects AC Aux Power and battery back up. 4. Put the Service/DISCHARGE selector switch in the LV cabinet to "DISCHARGE" position. This will
connect capacitors to the discharge circuit. 5. Wait till the capacitors are discharged to safe level (until the RED LED on discharge circuit stops glowing) 6. Since RER615 relay and optional Radio modem are supplied by charging device, switching OFF of
power supply also switches OFF the charging device, RER615 relay and any connected radio modem. 7. Thus, all the electrical controls/measurements & protections/communications of the recloser are switched
OFF and recloser LV cabinet is ready to for maintenance.
ACTIVITIES BEFORE DOING ANY MAINTENANCE OF THE RECLOSER LV UNIT
1. Follow all activities mentioned in previous clause 2. Ensure that the main circuit is properly earthed 3. Ensure that all the safety norms are followed as per your country and company's policy

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OVR-15, 27 & 38 LV cabinet Instruction Manual

REMOVAL OF RER615 RELAY
The RER615 is not intended for "hot swapping. When the RER615 is removed from its case, the current (I) input terminals automatically short circuit the CT inputs. No card should be removed from the RER615 in the field. If removal of cards is required, contact the ABB Customer Service Group.
Please follow the mandatory safety procedures as mentioned under section 1.0 of this document.
Once RER615 relay is powered OFF, with the inner door closed, move the relay handle upward by 90 Deg. Then pull the handle in horizontal plane .This removes the relay from its case. The movement is guided by the guide rails.

Figure-19 : Removal of RER615 from its case
REMOVAL OF BATTERIES
Please follow the mandatory safety procedures as mentioned under section 1.0 of this document. Below figure describes the steps to be followed when it is required to remove the batteries. Before physically removing the batteries from LV unit, ensure that the battery MCB is OFF and the battery connections are totally removed from battery terminals
1. Switch off the Battery MCB 2. Disengage Male-Female connectors inside the
battery wiring conduit 3. Remove the M6 Hex Head Screws A, B and C 4. Now, Remove the battery temperature sensor, by
disengaging the male-female connectors 5. Remove the whole Battery assembly and then
remove the clamps by removing M6 Hex head Screws D and E 6. Now, Remove the Batteries B1 and B2 in the direction as shown

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Figure - 20 : Removal of Batteries OVR-15, 27 & 38 LV cabinet Instruction Manual

8 COMMON TROUBLES AND TROUBLE SHOOTING

Table 4: Trouble shooting chart for OVR reclosers (Please read this table in conjunction with the
approved/ as built wiring diagram)

Sr.

Trouble /

No. Malfunction

Auxiliary Power failure

Indication / Observation
No voltage across auxiliary supply terminals in LV Unit
Voltage is present across auxiliary power terminals in LV unit but cubicle light & aux. power outlet, heater(s), do not have power.

Possible Causes - External Auxiliary power
connection to LV Unit is loosely connected - External Auxiliary Power may be OFF
Auxiliary Supply Mains MCB is OFF
If LED is blinking.

If LED is not Glowing

ACM/RER615

Charging device is

does not power defective ( its LED is

Check the resistance between

up even after main Aux. MCB

not glowing continuously)

NTC + & NTC for the values in between 8 to 10 k.Ohm @

is ON & Aux Supply is

available for

None of the LEDs

35C Ambient. MCB for ACM is OFF

more than 60s

(RED/GREEN) on

ACM glow

No LEDs on RER615 HMI glow and LCD screen does not light up
One or more blinking RED LED on ACM

Manual Lock out activated. Emergency manual trip (k69) handle has been operated and is locked in operated/tripped position.

Remedy / Trouble Shooting - Properly connect the Auxiliary
Power supply cable to the plug inside LV Unit - Check & correct the status of the external power supply.
Switch ON the MCB for Auxiliary Supply Mains
Charging device needs to be reprogrammed. Charging device is defective. Consult ABB representative. If found open or no values of resistance could be measured, temperature sensing cable is defective. Consult ABB representative. Switch ON the MCB for ACM
Reset the emergency manual trip handle & release the manual lock out

Recloser (AR) is

NOT ready;

OPEN & CLOSE 3 operations not

possible from

RER615 or from AR Ready LED on

remote

Relay glowing RED

Control cable between LV & HV units loose / not connected

Connect and secure the control cable between HV & LV units

Capacitors not sufficiently charged

- Put selector switch in DISCHARGE position
- Allow capacitors to fully discharge (follow warning label text guidelines)
- Check capacitor connections to ACM for loose contact and correct polarity as per wiring diagram
- Check the capacitor health; replace capacitors if needed

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OVR-15, 27 & 38 LV cabinet Instruction Manual

Wrong recloser ON/OFF status on SLD of RER615 HMI
(mismatch with mechanical ON/OFF indicator/ LEDs on RER615)
-OR-
Relay LED or SLD on relay LCD shows both ( ON/OFF) or no status

The wiring of the 52a/b aux. limit switch may be loose or wrong (52a/b aux. limit switch is mounted in HV unit)
The mounting/setting of the 52a/b aux. limit switch may be wrong/ loose -ORThe 52a/b aux limit switch is faulty/ damaged (52a/b aux. limit switch is mounted in HV unit)

Check, secure and correct the wiring of 52a/b aux. limit switch as per approved /as built schematic
- Check and correct the mounting/setting of the 52a/b aux. limit switch
- Replacement of the 52a/b switch may be needed if found faulty/damaged
- Contact ABB Customer Service Group

Recloser (AR) is

Ready but

operation is not possible

from RER615

SYN CHECK LED (if applicable) on relay HMI turns RED

Local HMI or

remote

The phase sequence of the MV power connections on both sides of the recloser are not matching to each other
Synchronizing and Energization check conditions are not being satisfied as per settings of SECRSYN function block.

Check & correct the phase sequence of the MV power cable connections to the recloser terminals
Check the system voltage parameter and network status

MCB for Battery is OFF

Switch ON the MCB for Battery

5 Battery Failure

Battery Status LED on relay HMI turning RED

Battery connections to charging device loose or with wrong polarity
Battery unhealthy (Battery may have undergone deep discharge; excessive temperatures; or exceeded working life)

Check, correct and secure battery connections to charging device with correct polarities
Check battery health and replace the battery if needed.

ACM is taking more than 20 seconds to become ready

Follow steps in point no. 3.0 above

Condition monitoring alarm activated. This is proactive 6 alarm about recloser condition which may need attention in near future

Condition monitoring alarm on relay HMI turning RED

Out of the rated life of 10000 CO operations , 9500 CO operations completed and last 1000 CO operations are remaining
Recloser has completed a greater number of open operations on higher currents (fault currents)
Recloser is in "inactive " (no close/open operations) stage for more than 2000 days ; after the latest ON/OFF operation while LV unit powered ON

Contact the nearest ABB Customer Service Group for further advice

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OVR-15, 27 & 38 LV cabinet Instruction Manual

9 GENERAL OVR-15, 27 & 38 BLOCK DIAGRAM
DUAL VOLTAGE SENSING

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OVR-15, 27 & 38 LV cabinet Instruction Manual

SINGLE SIDE VOLTAGE SENSING

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OVR-15, 27 & 38 LV cabinet Instruction Manual

10 TYPICAL RATING PLATE DETAILS
RATING PLATE ON LV CABINET

Description

Product Name

Rated Voltage

Rated Current

Insulation Level

Short Circuit Breaking Current

Short circuit withstand current and duration

Short Circuit Making Current (Peak)

Mass (Approx.)

Instruction Manual

OVR-15 OVR-15 15.5kV 630 A 50/110 kV pk 12.5 kA 3sec 12.5 kA 3sec 31.25 kA pk
70 140 1VYN401790-021

Product OVR-27 OVR-27 27kV 1000 A
60/125 kV pk 12.5 kA 3sec 12.5 kA 3sec 31.25 kA pk
70 140 1VYN401790-049

OVR-38 OVR-38
38kV 1200 A 70/170 kV pk 16 kA 3sec 16 kA 3sec 41.6 kA pk
70 175 1VYN401390-078

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OVR-15, 27 & 38 LV cabinet Instruction Manual

11 GENERAL ARRANGEMENT DRAWINGS
LV CONTROL CABINET GENERAL ARRANGEMENT

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OVR-15, 27 & 38 LV cabinet Instruction Manual

12 PARAMETERS TO BE MAINTAINED AS DEFAULT IN RER615

Following parameter settings ensure correct integrated performance of ACM & RER615 for any OVR three phase recloser model. Hence following settings SHOULD NOT BE CHANGED during the lifetime of the recloser, without prior permission from ABB.
CB CONDITION MONITORING SETTINGS (OVR-15, 27 & 38)

Group / Parameter Name Current (3I,CT): 1 Current (3I,CT) Operation Acc stop current Open alarm time Close alarm time Opening time Cor Closing time Cor Spring charge time Counter initial Val Alarm Op number Lockout Op number Current exponent
Difference Cor time
Alm Acc currents Pwr LO Acc currents Pwr Ini Acc currents Pwr Directional Coef Initial CB Rmn life Rated Op current Rated fault current Op number rated Op number fault Life alarm level Pressure alarm time Pres lockout time Inactive Alm days Ini inactive days Inactive Alm hours Travel time Clc mode

Value (Range)

Unit

1=on 5=off

5...500

0...200

0...100

0...60000

0...9999

0.00...2.00

-10...10

0...20000

-3.00...-0.50

0...9999

100...5000

500...75000 A

1...99999

1...10000

0...99999

0...60000

0...9999

0...23

From Pos to Pos

Step
0.01 1 1 1 1 10 1 1 1
0.01 1
0.01 0.01 0.01 0.01
1 0.01 0.01
1 1 1 1 10 1 1 1

Default RER615

OVR-15

OVR-27

OVR-38

1=on 10.00
40 40 10 10 20000 0 9999 9999 2.00 5
20000.00 20000.00
0.00 -2.87 9999 1250.00 16000.00 30000
22 1000
10 10 2000 0 9

1 500 80 90 10 10 20000
0 9500 9999 2.00
-2
20000.00 20000.00
0.00 -2.31 9999 630 12500 10000 30
10 10 1825 0 23

1 500 80 90 10 10 20000
0 9500 9999 2.00
-2
20000.00 20000.00
0.00 -2.31 9999 1000 12500 10000 30
10 10 1825 0 23

1 500 80 90 10 10 20000
0 9500 9999 2.00
-2
20000.00 20000.00
0.00 -2
9999 1200 16000 10000
30
10 10 1825 0 23

Trip logic
TRPPTRC: 1 Master Trip (1) Operation Trip pulse time Trip output mode

PC Value

Unit

Min

Non-latched

Max 60000

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OVR-15, 27 & 38 LV cabinet Instruction Manual

Trip circuit supervision
Group / Parameter Name TCSSCBR1: 1 TCS (1) Operation Operate delay time Reset delay time

PC Value

Unit

Min

off

3000

1000

Group / Parameter Name

PC Value

Unit

Min

TPGAPC1: 1

TP (1)

Pulse time

150

Max
300000 60000 Max
60000

Group / Parameter Name

PC Value

Unit

Min

TOFGAPC1: 1

TOF (1)

Off delay time 1

1000

Off delay time 2

Off delay time 3

Off delay time 4

Off delay time 5

Off delay time 6

Off delay time 7

Off delay time 8

Max
3600000 3600000 3600000 3600000 3600000 3600000 3600000 3600000

Generic Timers
Group / Parameter Name SPCGGIO1: 1 General Loc Rem restriction Output 1 Operation mode Pulse length Description Output 2 Operation mode Pulse length Description Output 3

IED Value

PC Value

Unit Min

Max

False

Toggle

1000

SPCGGIO1 Output 1

Toggle

1000

SPCGGIO1 Output 2

3600000 64 character
3600000 64 character

Generic Logic
Similarly following settings decide the accuracy of current/voltage measurements for the product configuration applicable to your recloser. These settings also SHOULD NOT BE CHANGED during the lifetime of the recloser, without prior permission from ABB.

CORRECTION FACTORS: ANALOG INPUTS (CURRENT):

Group / Parameter Name Current (3I,CT): 1 Current (3I,CT) Primary current Secondary current Amplitude corr. A
34 | P a g e

PC Value
600* 1A
1.0000

Unit A

Min

Max

1.0 0.9000

6000.0 1.1000

OVR-15, 27 & 38 LV cabinet Instruction Manual

Amplitude corr. B Amplitude corr. C Reverse Polarity Angle corr. A Angle corr. B Angle corr. C

1.0000

False

0.0000

deg

0.0000

deg

0.0000

deg

Group / Parameter Name

PC Value

Unit

Current (Io.CT): 1

Current (Io.CT)

Amplitude corr.

1.0000

* Primary current 300:1 available on OP1 DVS Pole

0.9000 0.9000
-20.000 -20.000 -20.000
Min
0.9000

CORRECTION FACTORS: ANALOG INPUTS (VOLTAGE):

Group / Parameter Name Voltage (3U.VT): 1 Voltage (3U.VT) Primary voltage VT Connection Amplitude corr. A Amplitude corr. B Amplitude corr. C Division ratio Voltage input type Angle corr. A Angle corr. B Angle corr. C

PC Value
****** Wye
As per routine test result provided by
factory
RVD/CVD Sensor 0 0 0

Unit kV
deg deg deg

Min
0.100
0.900 0.900 0.900 1000
-20.000 -20.000 -20.000

1.1000 1.1000 20.000 20.000 20.000 Max
1.1000
Max
440.00 1.100 1.100 1.100 20000 20.000 20.000 20.000

Below additional table is applicable for six voltage sensor solution only (with additional sensors on H1 side)

Group / Parameter Name Voltage (3UB.VT): 1 Voltage (3UB.VT) Primary voltage VT Connection Amplitude corr. A Amplitude corr. B Amplitude corr. C Division ratio Voltage input type Angle corr. A Angle corr. B Angle corr. C

PC Value
****** Wye As per routine test result provided by factory
RVD/CVD Sensor 0 0 0

Unit kV
deg deg deg

Min
0.100
0.900 0.900 0.900 1000
-20.000 -20.000 -20.000

Max
440.00
1.100 1.100 1.100 20000
20.000 20.000 20.000

******* System voltage as per approved drawings

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OVR-15, 27 & 38 LV cabinet Instruction Manual

13 RER615 SETTINGS

TABLE 5.1 : SETTINGS FOR RER615 WITH REFERENCE TO OVR-15, 27 & 38 RECLOSER

For OVR-15 Recloser

For OVR-27 Recloser

For OVR-38 Recloser

Sr. No.

Protection

IEC61850 Identification

Setting range available in RER615

600/1A CT & 15.5kV System Voltage

Setting Range to be used

600/1A CT & 27kV System Voltage

Setting Range to be Setting Range to be

used

600/1A CT & 38kV System Voltage

Setting Range to be Setting Range to be

used

(in Nominal Values)

(in Absolute Values) (in Nominal Values) (in Absolute Values) (in Nominal Values) (in Absolute Values)

Three-phase non-directional overcurrent protection (FPHxPTOC) main settings

Start Value 1
Time multiplier

FPHLPTOC PHHPTOC PHIPTOC FPHLPTOC PHHPTOC

0.05...5.00 × In 0.10...40.00 × In 1.00...40.00 × In 0.05...15.00 0.05...15.00

0.05...5.00 × In 0.10...20.83 × In 1.00...20.83 × In 0.05...15.00 0.05...15.00

Operate delay time

FPHLPTOC PHHPTOC

40...200000 ms 40...200000 ms

PHIPTOC

20...200000 ms 20...200000 ms

Optional Three-phase directional overcurrent protection (FDPHxPDOC) main settings

Start Value

FDPHLPDOC DPHHPDOC

0.05...5.00 × In 0.10...40.00 × In

0.05...5.00 × In 0.10...20.83 × In

Time multiplier

DPHxPDOC 0.05...15.00

0.05...15.00

2 Operate delay time Directional mode

DPHxPDOC DPHxPDOC

40...200000 ms 1 = Nondirectional 2 = Forward

40...200000 ms 1 = Non-directional 2 = Forward

Characteristic angle

DPHxPDOC

3 = Reverse -179...180°

Non-directional earth-fault protection (FEFxPTOC) main settings

FEFLPTOC

0.010...5.000 × In 0.010...5.000 × In

3 Start Value

EFHPTOC

0.10...40.00 × In 0.10...20.83 × In

EFIPTOC

1.00...40.00 × In 1.00...20.83 × In

Time multiplier

FEFLPTOC

0.05...15.00

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30-3000A 60-12500A 600-12500A 30-9000A 30-9000A 40...200000 ms 40...200000 ms 20...200000 ms
30-3000A 60-12500A 30-9000A 40...200000 ms 1 = Nondirectional 2 = Forward 3 = Reverse -179...180°
6-3000A 60-12500A 600-12500A 30-9000A

0.05...5.00 × In 0.10...20.83 × In 1.00...20.83 × In 0.05...15.00 0.05...15.00 40...200000 ms 40...200000 ms 20...200000 ms

30-3000A 60-12500A 600-12500A 30-9000A 30-9000A 40...200000 ms 40...200000 ms 20...200000 ms

0.05...5.00 × In
0.10...20.83 × In 0.05...15.00 40...200000 ms 1 = Nondirectional 2 = Forward 3 = Reverse -179...180°

30-3000A 60-12500A 30-9000A 40...200000 ms 1 = Nondirectional 2 = Forward 3 = Reverse -179...180°

0.05...5.00 × In 0.10...26.6 × In 1.00...26.6 × In 0.05...15.00 0.05...15.00 40...200000 ms 40...200000 ms 20...200000 ms
0.05...5.00 × In 0.10...26.6 × In 0.05...15.00 40...200000 ms 1 = Nondirectional 2 = Forward 3 = Reverse -179...180°

30-3000A 60-16000A 600-16000A 30-9000A 30-9000A 40...200000 ms 40...200000 ms 20...200000 ms
30-3000A 60-16000A 30-9000A 40...200000 ms 1 = Nondirectional 2 = Forward 3 = Reverse -179...180°

0.010...5.000 × In 0.10...20.83 × In 1.00...20.83 × In 0.05...15.00

6-3000A 60-12500A 600-12500A 30-9000A

0.010...5.000 × In 0.10...26.6 × In 1.00...26.6 × In 0.05...15.00

6-3000A 60-16000A 600-16000A 30-9000A

OVR-15, 27 & 38 LV cabinet Instruction Manual

For OVR-15 Recloser

For OVR-27 Recloser

For OVR-38 Recloser

Sr. No.

Protection

IEC61850 Identification

Setting range available in RER615

600/1A CT & 15.5kV System Voltage

Setting Range to be used

600/1A CT & 27kV System Voltage

Setting Range to be Setting Range to be

used

600/1A CT & 38kV System Voltage

Setting Range to be Setting Range to be

used

(in Nominal Values)

(in Absolute Values) (in Nominal Values) (in Absolute Values) (in Nominal Values) (in Absolute Values)

EFHPTOC

0.05...15.00

FEFLPTOC

40...200000 ms 40...200000 ms

Operate delay time

EFHPTOC

40...200000 ms 40...200000 ms

EFIPTOC

40...200000 ms 40...200000 ms

Optional Directional earth-fault protection (FDEFxPDEF) main settings

Start Value

FDEFLPDEF DEFHPDEF

0.010...5.000 × In 0.10...40.00 × In

0.010...5.000 × In 0.10...20.83 × In

Directional mode 4

FDEFLPDEF and DEFHPDEF

1 = Nondirectional 2 = Forward
3 = Reverse

1 = Non-directional
2 = Forward 3 = Reverse

Time multiplier

FDEFLPDEF DEFHPDEF

0.05...15.00 0.05...15.00

Operate delay time

FDEFLPDEF DEFHPDEF

60...200000 ms 40...200000 ms

Transient/intermittent earth-fault protection (INTRPTEF) main settings 1=Non-directional 1=Non-directional

Directional mode

INTRPTEF

2=Forward

3=Reverse

Operate delay time Voltage start value (voltage start 5 value for transient EF)
Operation mode

INTRPTEF INTRPTEF INTRPTEF INTRPTEF

40...1200000 ms 40...1200000 ms

0.01...0.50 × Un

1=Intermittent EF 1=Intermittent EF

2=Transient EF

Peak counter limit (Min requirement for peak counter before start in IEF mode)

INTRPTEF

2...20

Min operate current

INTRPTEF

0.01...1.00 × In

Optional Admittance-based earth-fault protection (EFPADM) main settings

Voltage start value

EFPADM

0.01...5.00 × Un

0.01...1.00 × Un

6 Directional mode

EFPADM

1 = Nondirectional
2 = Forward

1 = Non-directional 2 = Forward

3 = Reverse

Operation mode

EFPADM

1 = Yo

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30-9000A 40...200000 ms 40...200000 ms 40...200000 ms

0.05...15.00 40...200000 ms 40...200000 ms 40...200000 ms

30-9000A 40...200000 ms 40...200000 ms 40...200000 ms

0.05...15.00 40...200000 ms 40...200000 ms 40...200000 ms

30-9000A 40...200000 ms 40...200000 ms 40...200000 ms

6-3000A 60-12500A 1 = Nondirectional 2 = Forward 3 = Reverse 0.05...15.00 0.05...15.00 60...200000 ms 40...200000 ms

0.010...5.000 × In 0.10...20.83 × In 1 = Nondirectional 2 = Forward 3 = Reverse 0.05...15.00 0.05...15.00 60...200000 ms 40...200000 ms

6-3000A 60-12500A 1 = Nondirectional 2 = Forward 3 = Reverse 0.05...15.00 0.05...15.00 60...200000 ms 40...200000 ms

0.010...5.000 × In 0.10...26.6 × In 1 = Nondirectional 2 = Forward 3 = Reverse 0.05...15.00 0.05...15.00 60...200000 ms 40...200000 ms

6-3000A 60-16000A 1 = Nondirectional 2 = Forward 3 = Reverse 0.05...15.00 0.05...15.00 60...200000 ms 40...200000 ms

1=Non-directional 2=Forward 3=Reverse 40...1200000 ms

155V-7750V

0.01...0.50 × Un

270V-13500V

0.01...0.50 × Un

380-16000V

1=Intermittent EF 1=Intermittent EF 1=Intermittent EF 1=Intermittent EF 1=Intermittent EF

2=Transient EF

2...20

6A-600A

0.01...1.00 × In

6A-600A

0.01...1.00 × In

6A-600A

155V-15500V 1 = Nondirectional 2 = Forward
3 = Reverse
1 = Yo

0.01...1.00 × Un 1 = Nondirectional 2 = Forward
3 = Reverse
1 = Yo

270V-27000V 1 = Nondirectional 2 = Forward
3 = Reverse
1 = Yo

0.01...1.00 × Un 1 = Nondirectional 2 = Forward
3 = Reverse
1 = Yo

380-38000V 1 = Nondirectional 2 = Forward
3 = Reverse
1 = Yo

OVR-15, 27 & 38 LV cabinet Instruction Manual

For OVR-15 Recloser

For OVR-27 Recloser

For OVR-38 Recloser

Sr. No.

Protection

IEC61850 Identification

Setting range available in RER615

600/1A CT & 15.5kV System Voltage

Setting Range to be used

600/1A CT & 27kV System Voltage

Setting Range to be Setting Range to be

used

600/1A CT & 38kV System Voltage

Setting Range to be Setting Range to be

used

(in Nominal Values)

(in Absolute Values) (in Nominal Values) (in Absolute Values) (in Nominal Values) (in Absolute Values)

2 = Go

3 = Bo 4 = Yo, Go

5 = Yo, Bo 6 = Go, Bo

7 = Yo, Go, Bo

Operate delay time Circle radius Circle conductance
Circle susceptance Conductance forward
Conductance reverse Conductance tilt Ang Susceptance forward
Susceptance reverse Susceptance tilt Ang

EFPADM EFPADM EFPADM
EFPADM EFPADM
EFPADM EFPADM EFPADM
EFPADM EFPADM

60...200000 ms
0.05...500.00 mS
-500.00...500.00 mS -500.00...500.00 mS -500.00...500.00 mS -500.00...500.00 mS
-30...30°
-500.00...500.00 mS -500.00...500.00 mS
-30...30°

Optional Wattmetric based earth-fault protection (WPWDE) main settings

Directional mode

WPWDE

2 = Forward 3 = Reverse

Current start value Voltage start value

WPWDE WPWDE

0.010...5.000 × In 0.010...1.000 × Un

2 = Go 3 = Bo 4 = Yo, Go 5 = Yo, Bo 6 = Go, Bo 7 = Yo, Go, Bo 60...200000 ms 0.05...500.00 mS -500.00...500.00 mS
-500.00...500.00 mS
-500.00...500.00 mS
-500.00...500.00 mS -30...30° -500.00...500.00 mS
-500.00...500.00 mS -30...30°
2 = Forward 3 = Reverse 0.010...5.000 × In 0.010...1.000 × Un

7 Power start value

WPWDE

0.003...1.000 × Pn 0.003...1.000 × Pn

Reference power
Characteristic angle
38 | P a g e

WPWDE WPWDE

0.050...1.000 × Pn 0.050...1.000 × Pn

-179...180°

2 = Go
3 = Bo
4 = Yo, Go
5 = Yo, Bo
6 = Go, Bo
7 = Yo, Go, Bo
60...200000 ms
0.05...500.00 mS -500.00...500.00 mS -500.00...500.00 mS -500.00...500.00 mS -500.00...500.00 mS -30...30° -500.00...500.00 mS -500.00...500.00 mS -30...30°
2 = Forward
3 = Reverse
6-3000A
6-600A Internally calculated based on Un ( Max 38kV) , In (max 600A) Internally calculated based on Un ( Max 38kV) , In (max 600A) -179...180°

2 = Forward 3 = Reverse 0.010...5.000 × In 0.010...1.000 × Un
0.003...1.000 × Pn
0.050...1.000 × Pn
-179...180°

2 = Forward
3 = Reverse
6-3000A
6-600A
Internally calculated based on Un ( Max 38kV) , In (max 600A) Internally calculated based on Un ( Max 38kV) , In (max 600A)
-179...180°

2 = Forward 3 = Reverse 0.010...5.000 × In 0.010...1.000 × Un
0.003...1.000 × Pn
0.050...1.000 × Pn
-179...180°

2 = Forward
3 = Reverse
6-3000A
6-600A
Internally calculated based on Un ( Max 38kV) , In (max 600A) Internally calculated based on Un ( Max 38kV) , In (max 600A)
-179...180°

OVR-15, 27 & 38 LV cabinet Instruction Manual

For OVR-15 Recloser

For OVR-27 Recloser

For OVR-38 Recloser

Sr. No.

Protection

IEC61850 Identification

Setting range available in RER615

600/1A CT & 15.5kV System Voltage

Setting Range to be used

600/1A CT & 27kV System Voltage

Setting Range to be Setting Range to be

used

600/1A CT & 38kV System Voltage

Setting Range to be Setting Range to be

used

(in Nominal Values)

(in Absolute Values) (in Nominal Values) (in Absolute Values) (in Nominal Values) (in Absolute Values)

Time multiplier

WPWDE

0.05...2.00

Operate delay time Min operate current

WPWDE WPWDE

60...200000 ms 0.010...1.000 × In

Min operate voltage

WPWDE

0.01...1.00 × Un

Optional Harmonics earth-fault protection (HAEFPTOC) main settings

Start value

HAEFPTOC

0.05...5.00 × In

8 Time multiplier Operate delay time

HAEFPTOC HAEFPTOC

0.05...15.00 100...200000 ms

Minimum operate time

HAEFPTOC

100...200000 ms 100...200000 ms

Three-phase overvoltage protection (PHPTOV) main settings

Start value

PHPTOV

0.05...1.60 × Un

9 Time multiplier

PHPTOV

0.05...15.00

Operate delay time

PHPTOV

40...300000 ms 40...300000 ms

Three-phase undervoltage protection (PHPTUV) main settings

Start value 10
Time multiplier

PHPTUV PHPTUV

0.05...1.20 × Un 0.05...15.00

Operate delay time

PHPTUV

60...300000 ms 60...300000 ms

Positive-sequence undervoltage protection (PSPTUV) main settings

Start value 11
Operate delay time

PSPTUV PSPTUV

0.010...1.200 × Un 0.010...1.200 × Un

40...120000 ms

Voltage block value

PSPTUV

0.01...1.0 × Un

Frequency protection (FRPFRQ) main settings

1 = Freq<

2 = Freq>

12 Operation mode

FRPFRQ

3 = df/dt
4 = Freq< + df/dt
5 = Freq> + df/dt 6 = Freq< OR df/dt 7 = Freq> OR df/dt

3 = df/dt 4 = Freq< + df/dt 5 = Freq> + df/dt 6 = Freq< OR df/dt
7 = Freq> OR df/dt

0.05...2.00 60...200000 ms 6-600A 6-600A

0.05...2.00 60...200000 ms 0.010...1.000 × In 0.01...1.00 × Un

0.05...2.00 60...200000 ms 6-600A 6-600A

0.05...2.00 60...200000 ms 0.010...1.000 × In 0.01...1.00 × Un

0.05...2.00 60...200000 ms 6-600A 6-600A

30-3000A 0.05...15.00 100...200000 ms 100...200000 ms

0.05...5.00 × In 0.05...15.00 100...200000 ms 100...200000 ms

30-3000A 0.05...15.00 100...200000 ms 100...200000 ms

0.05...5.00 × In 0.05...15.00 100...200000 ms 100...200000 ms

30-3000A 0.05...15.00 100...200000 ms 100...200000 ms

775-24800V
0.05...15.00
40...300000 ms for setting max upto24800V

0.05...1.60 × Un 0.05...15.00
40...300000 ms

1350-43200V
0.05...15.00
40...300000 ms for setting max upto 43200V

0.05...1.60 × Un 0.05...15.00
40...300000 ms

1900-60800V
0.05...15.00
40...300000 ms for setting max upto 45600V

775-18600 V 0.05...15.00 60...300000 ms

0.05...1.20 × Un 0.05...15.00 60...300000 ms

1350-32400 V 0.05...15.00 60...300000 ms

0.05...1.20 × Un 0.05...15.00 60...300000 ms

1900-45600 V 0.05...15.00 60...300000 ms

155-18600V 40...120000 ms 0.01...1.0 × Un

0.010...1.200 × Un 40...120000 ms 0.01...1.0 × Un

270-32400V 40...120000 ms 0.01...1.0 × Un

0.010...1.200 × Un 40...120000 ms 0.01...1.0 × Un

380-45600V 40...120000 ms 0.01...1.0 × Un

1 = Freq<
2 = Freq>
3 = df/dt
4 = Freq< + df/dt
5 = Freq> + df/dt 6 = Freq< OR df/dt 7 = Freq> OR df/dt

39 | P a g e

OVR-15, 27 & 38 LV cabinet Instruction Manual

For OVR-15 Recloser

For OVR-27 Recloser

For OVR-38 Recloser

Sr. No.

Protection

IEC61850 Identification

Setting range available in RER615

600/1A CT & 15.5kV System Voltage

Setting Range to be used

600/1A CT & 27kV System Voltage

Setting Range to be Setting Range to be

used

600/1A CT & 38kV System Voltage

Setting Range to be Setting Range to be

used

(in Nominal Values)

(in Absolute Values) (in Nominal Values) (in Absolute Values) (in Nominal Values) (in Absolute Values)

Start value Freq>

FRPFRQ

0.9000...1.2000 × fn

0.9000...1.2000 × fn : Calculate with Fn=50 or 60Hz as per requirement

0.9000...1.2000 × fn

0.9000...1.2000 × fn : Calculate with Fn=50 or 60Hz as per requirement

0.9000...1.2000 × fn

0.9000...1.2000 × fn : Calculate with Fn=50 or 60Hz as per requirement

Start value Freq< Start value df/dt Operate Tm Freq

FRPFRQ FRPFRQ FRPFRQ

0.8000...1.1000 × fn
-0.200...0.200 × fn/s
80...200000 ms

0.8000...1.1000 × fn -0.200...0.200 × fn/s 80...200000 ms

0.8000...1.1000 × fn : Calculate with Fn=50 or 60Hz as per requirement
-0.200...0.200 × fn/s : Calculate with Fn=50 or 60Hz as per requirement
80...200000 ms

0.8000...1.1000 × fn
-0.200...0.200 × fn/s
80...200000 ms

0.8000...1.1000 × fn : Calculate with Fn=50 or 60Hz as per requirement
-0.200...0.200 × fn/s : Calculate with Fn=50 or 60Hz as per requirement
80...200000 ms

0.8000...1.1000 × fn
-0.200...0.200 × fn/s
80...200000 ms

0.8000...1.1000 × fn : Calculate with Fn=50 or 60Hz as per requirement
-0.200...0.200 × fn/s : Calculate with Fn=50 or 60Hz as per requirement
80...200000 ms

Operate Tm df/dt

FRPFRQ

120...200000 ms 120...200000 ms

120...200000 ms 120...200000 ms 120...200000 ms 120...200000 ms 120...200000 ms

Negative-sequence overvoltage protection (NSPTOV) main settings

13 Start value

NSPTOV

0.010...1.000 × Un 0.010...1.000 × Un

155-15500

0.010...1.000 × Un 270-27000V

0.010...1.000 × Un 380-38000V

Operate delay time

NSPTOV

40...120000 ms

Residual overvoltage protection (ROVPTOV) main settings

14 Start value

ROVPTOV

0.010...1.000 × Un 0.010...1.000 × Un

155-15500

0.010...1.000 × Un 270-27000V

0.010...1.000 × Un 380-38000V

Operate delay time

ROVPTOV

40...300000 ms 40...300000 ms

40...120000 ms

40...300000 ms 40...120000 ms

Negative phase-sequence overcurrent protection (NSPTOC) main settings

Start value 15
Time multiplier

NSPTOC NSPTOC

0.01...5.00 × In 0.05...15.00

6-3000A 0.05...15.00

0.01...5.00 × In 0.05...15.00

6-3000A 0.05...15.00

0.01...5.00 × In 0.05...15.00

6-3000A 0.05...15.00

Operate delay time

NSPTOC

40...200000 ms 40...200000 ms

40...200000 ms 40...200000 ms 40...200000 ms 40...200000 ms 40...200000 ms

Phase discontinuity protection (PDNSPTOC) main settings

Start value (Current ratio setting 16 I2/I1)

PDNSPTOC

10...100%

Operate delay time

PDNSPTOC

100...30000 ms

10...100% 100...30000 ms

Min phase current

PDNSPTOC

0.05...0.30 × In

30-180A

0.05...0.30 × In

30-180A

0.05...0.30 × In

30-180A

Circuit breaker failure protection (CCBRBRF) main settings

Current value (Operating phase
current) 17

CCBRBRF

0.05...1.00 × In

Current value Res (Operating residual current)

CCBRBRF

0.05...1.00 × In

0.05...1.00 × In 0.05...1.00 × In

30-600A
30-600A ( with I0 setting=1A) ; 6120A (with I0 setting=0.2A)

0.05...1.00 × In 0.05...1.00 × In

30-600A
30-600A ( with I0 setting=1A) ; 6120A (with I0 setting=0.2A)

0.05...1.00 × In 0.05...1.00 × In

30-600A
30-600A ( with I0 setting=1A) ; 6120A (with I0 setting=0.2A)

40 | P a g e

OVR-15, 27 & 38 LV cabinet Instruction Manual

For OVR-15 Recloser

For OVR-27 Recloser

For OVR-38 Recloser

Sr. No.

Protection

IEC61850 Identification

Setting range available in RER615

600/1A CT & 15.5kV System Voltage

Setting Range to be used

600/1A CT & 27kV System Voltage

Setting Range to be Setting Range to be

used

600/1A CT & 38kV System Voltage

Setting Range to be Setting Range to be

used

(in Nominal Values)

(in Absolute Values) (in Nominal Values) (in Absolute Values) (in Nominal Values) (in Absolute Values)

CB failure mode (Operating mode of function)

CCBRBRF

1 = Current 2 = Breaker status 3 = Both

1 = Off

CB fail trip mode

CCBRBRF

2 = Without check 2 = Without check

3 = Current check 3 = Current check

Retrip time

CCBRBRF

0...60000 ms

CB failure delay

CCBRBRF

0...60000 ms

CB fault delay

CCBRBRF

0...60000 ms

Three-phase thermal overload (T1PTTR) main settings

Env temperature Set (Ambient temperature used when the AmbSens is set to Off)

T1PTTR

-50...100°C

Current multiplier (Current

multiplier when function is used

T1PTTR

1...5

for parallel lines)

Current reference
Temperature rise (End temperature rise above ambient)
18 Time constant (Time constant of the line in seconds)
Maximum temperature (temperature level for operate)
Alarm value (Temperature level for start (alarm)
Reclose temperature (Temperature for reset of block reclose after operate)

T1PTTR T1PTTR T1PTTR T1PTTR T1PTTR
T1PTTR

0.05...4.00 × In 0.0...200.0°C 60...60000 s 20.0...200.0°C 20.0...150.0°C
20.0...150.0°C

Initial temperature (Temperature raise above ambient temperature at startup)

T1PTTR

-50.0...100.0°C

Three-phase inrush detection (INRPHAR) main settings

Start value (Ratio of the 2nd to the 1st harmonic leading to restraint)

INRPHAR

5...100%

Operate delay time

INRPHAR

20...60000 ms

5...100% 20...60000 ms

20 Multipurpose analog protection (MAPGAPC) main settings

41 | P a g e

1 = Current 2 = Breaker status 3 = Both 1 = Off 2 = Without check 3 = Current check 0...60000 ms 0...60000 ms 0...60000 ms

-50...100°C

1...5 30A-2400A 0.0...200.0°C 60...60000 s 20.0...200.0°C 20.0...150.0°C
20.0...150.0°C

1...5 0.05...4.00 × In 0.0...200.0°C 60...60000 s 20.0...200.0°C 20.0...150.0°C
20.0...150.0°C

1...5 30A-2400A 0.0...200.0°C 60...60000 s 20.0...200.0°C 20.0...150.0°C
20.0...150.0°C

1...5 0.05...4.00 × In 0.0...200.0°C 60...60000 s 20.0...200.0°C 20.0...150.0°C
20.0...150.0°C

1...5 30A-2400A 0.0...200.0°C 60...60000 s 20.0...200.0°C 20.0...150.0°C
20.0...150.0°C

-50.0...100.0°C

5...100% 20...60000 ms

OVR-15, 27 & 38 LV cabinet Instruction Manual

For OVR-15 Recloser

For OVR-27 Recloser

For OVR-38 Recloser

Sr. No.

Protection

IEC61850 Identification

Setting range available in RER615

600/1A CT & 15.5kV System Voltage

Setting Range to be used

600/1A CT & 27kV System Voltage

Setting Range to be Setting Range to be

used

600/1A CT & 38kV System Voltage

Setting Range to be Setting Range to be

used

(in Nominal Values)

(in Absolute Values) (in Nominal Values) (in Absolute Values) (in Nominal Values) (in Absolute Values)

Start value

MAPGAPC

Operate delay time Operation mode

MAPGAPC MAPGAPC

Fault locator (SCEFRFLO) main settings

Z Max phase load

SCEFRFLO

Ph leakage Ris

SCEFRFLO

Ph capacitive React

SCEFRFLO

R1 line section A

SCEFRFLO

21 X1 line section A

SCEFRFLO

R0 line section A

SCEFRFLO

X0 line section A

SCEFRFLO

Line Len section A

SCEFRFLO

10000.0...10000.0 0...200000 ms
Over Under

-10000.0...10000.0
0...200000 ms Over Under

10000.0...10000.0 0...200000 ms
Over Under

1.0...10000.00
20...1000000
10...1000000
0.000...1000.000 /pu 0.000...1000.000 /pu 0.000...1000.000 /pu 0.000...1000.000 /pu 0.000...1000.000 pu

1.0...10000.00
20...1000000
10...1000000 0.000...1000.000 /pu 0.000...1000.000 /pu 0.000...1000.000 /pu 0.000...1000.000 /pu
0.000...1000.000 pu

1.0...10000.00
20...1000000
10...1000000
0.000...1000.000 /pu 0.000...1000.000 /pu 0.000...1000.000 /pu 0.000...1000.000 /pu 0.000...1000.000 pu

42 | P a g e

OVR-15, 27 & 38 LV cabinet Instruction Manual

14 ANNEXURE I : TYPICAL FUNCTIONAL CHARACTERISTICS OF SEALED
LEAD ACID BATTERIES
This Annexure belongs to the typical functional characteristics of the batteries used in OVR three phase reclosers. There are two 12 V batteries connected in series in each LV control cabinet of the OVR reclosers. Please check the AH rating pertaining to your recloser from the order related drawings.
Storage Characteristics /Self Discharge Characteristics:
In case of delay in commissioning of the reclosers, the battery should not be left unattended as the selfdischarge characteristic of battery limits the storage period. Storage temperature has significant impact on the storage period as shown in adjacent graph. Hence, under circumstances of extended storage of recloser control cabinet, it is recommended to charge the batteries typically after every three months.

Open Circuit Voltage Characteristics:
When the batteries provided with OVR recloser are in healthy condition, the remaining capacity on the battery at different open circuit voltage across each battery terminal is indicated in the adjacent graph.
OVR will continue to function on the battery back-up as long as the combined battery voltage is above 21.5 V (10.75 V per battery). If battery bank voltage falls below 21.5 V, OVR will provide a BATTERY NOT OK indication and will initiate load management algorithm with disconnection of loads like relay and communication modem to avoid battery going into deep discharge mode.
43 | P a g e

OVR-15, 27 & 38 LV cabinet Instruction Manual

Temperature (Thermal) Characteristics (Effect of Temperature)
Operating temperature also has effect on battery capacity as rate of discharge is a function of ambient temperature for supplied batteries. At 20°C (68°F) battery capacity is 100%.The capacity increases slowly above this temperature and decreases as the temperature falls. Higher the rate of discharge, lower is the available capacity. While raising ambient temperature increases capacity, it also reduces useful service life.
Adjacent graph provides the effect of temperature with on capacity and service life for ready reference. It is estimated that battery life is halved for each 10°C (18°F) above normal room temperature.

Service life:
Every battery will see reduction in AH capacity with increasing service life. General characteristic of the battery shows that with usage at 20Deg, in 5 years the battery will reach its end of life (60% of AH capacity) & will need replacement. Considering the cyclic use (charge and discharge cycle), higher ambient temperature at site, for batteries in recloser control cubicle, replacement period of 3 years is recommended.

Service life at various ambient temperatures

44 | P a g e

OVR-15, 27 & 38 LV cabinet Instruction Manual

For more information, please contact:
ABB India Limited
Plot No.34, Street No.1 MIDC Industrial Area, Satpur Nashik 422007 Maharashtra India
Customer support: 18004200707 Customer support: ppmvsupport@in.abb.com customer.service.group@in.abb.com

ABB US
680 Century Point Suite 1050 Lake Mary, Florida 32746, USA
Customer Service 1-800-929-7947 Customer.Service.Group@us.abb.com

ABB de México S.A. de C.V.
Av. Central 310 Parque Logístico CP. 78395 San Luis Potosí, SLP, México Tel: +52 444 870 8000

ABB Argentina S.A.U.
Norberto López 3600 B1805ABT, El Jagüel, Buenos Aires Aftersales Support: ar-epdsgarantia@abb.com

Revision Table:
Rev. A

Description New Releases

Date 29.06.2021

Remarks

Microsoft Word for Microsoft 365